CVE-2021-39861

Published: Sep 29, 2021Modified: Jun 17, 2026

5.5

Vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Exploitability: 1.8 / Impact: 3.6

Source: NVD

Description

Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of arbitrary memory information in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Affected (7)

Products: Adobe: Acrobat Dc, Acrobat Reader Dc, Acrobat 2017, Acrobat Reader 2017, Acrobat, Acrobat Reader

6 products

Acrobat Reader Dc

Acrobat Reader 2017

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Adobe Acrobat Dc	From 20.006.20034 to 21.005.20060

Configuration C

1 vulnerable

Vulnerable Software	Affected Versions
Adobe Acrobat Reader Dc	From 20.006.20034 to 21.005.20060

Configuration D

1 vulnerable

Vulnerable Software	Affected Versions
Adobe Acrobat Dc	From 20.006.20034 to 21.005.20058

Configuration E

2 vulnerable

Vulnerable Software	Affected Versions
Adobe Acrobat 2017	From 17.011.30158 to 17.011.30199
Adobe Acrobat Reader 2017	From 17.011.30158 to 17.011.30199

Configuration F

2 vulnerable · 2 platform

Vulnerable Software	Affected Versions
Adobe Acrobat	From 20.001.30005 to 20.004.30006
Adobe Acrobat Reader	From 20.001.30005 to 20.004.30006

Running on/with	Platform Versions
Apple Macos	All versions
Microsoft Windows	All versions

Related CWEs

Out-of-bounds Read

The product reads data past the end, or before the beginning, of the intended buffer.

References (2)

https://helpx.adobe.com/security/products/acrobat/apsb21-55.html

Source: psirt@adobe.com

Release NotesVendor Advisory

https://helpx.adobe.com/security/products/acrobat/apsb21-55.html

Source: af854a3a-2127-422b-91ae-364da2661108

Release NotesVendor Advisory

Timeline

No history available yet.